Auth bypass in Apptivo Business Site Crm

CVE-2025-31909

Missing Authorization vulnerability in Apptivo Apptivo Business Site CRM apptivo-business-site allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Apptivo Business Site CRM: from n/a through <= 5.3.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-31909: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-31909?
CVE-2025-31909 is a high-severity vulnerability in Apptivo Business Site Crm, classified under Missing Authorization. CVSS score: 7.5/10. Published 2025-04-03.
How severe is CVE-2025-31909?
High severity. CVSS v3 base score is 7.5 out of 10.